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CVE Database
Published vulnerabilities with severity, known exploitation and official sources.
CVE-2026-24006
High · 7.5
CWE-770 Jan 22, 2026
Seroval affected by Denial of Service via Deeply Nested Objects
Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0
and below, serialization of objects with extreme depth can exceed the maximum call stack limit. In version 1.4.1, Seroval introduces a `depthLimit` parameter in serialization/deserialization methods. An error will be thrown if the depth limit is reached.
CVE-2026-23963
Medium · 6.5
CWE-770 Jan 22, 2026
Mastodon missing length limits on list names, filter names, and filter keywords
Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, the server does not enforce a maximum length for the names of lists or filters, or for filter keywords, allowing any user to set an arbitrarily long string as the name or keyword. Any local user can abuse the list or filter fields to cause disproportionate storage and computing resource usage. They can additionally cause their own web interface to be unusable, although they must intentionally do this to themselves or unknowingly approve a malicious API client. Mastodon versions v4.5.5, v4.4.12, v4.3.18 are patched.
CVE-2026-23962
High · 7.5
CWE-770 Jan 22, 2026
Mastodon vulnerable to Denial of Service from a single post (client/server)
Mastodon is a free, open-source social network server based on ActivityPub. Mastodon versions before v4.3.18, v4.4.12, and v4.5.5 do not have a limit on the maximum number of poll options for remote posts, allowing attackers to create polls with a very large amount of options, greatly increasing resource consumption. Depending on the number of poll options, an attacker can cause disproportionate resource usage in both Mastodon servers and clients, potentially causing Denial of Service either server-side or client-side. Mastodon versions v4.5.5, v4.4.12, v4.3.18 are patched.
CVE-2026-23957
High · 7.5
CWE-770 Jan 21, 2026
seroval is vulnerable to Denial of Service via array serialization
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0
and below, overriding encoded array lengths by replacing them with an excessively large value causes the deserialization process to significantly increase processing time. This issue has been fixed in version 1.4.1.
CVE-2025-68138
Medium · 4.7
CWE-770 Jan 21, 2026
EVerest affected by memory exhaustion in libocpp
EVerest is an EV charging software stack, and EVerest libocpp is a C++ implementation of the Open Charge Point Protocol. In libocpp prior to version 0.30.1, pointers returned by the `strdup` calls are never freed. At each connection attempt, the newly allocated memory area will be leaked, potentially causing memory exhaustion and denial of service. Version 0.30.1 fixes the issue.
CVE-2025-68136
High · 7.4
CWE-770 Jan 21, 2026
EVerest's inadequate session handling can lead to memory-related errors or exhaustion of the operating system’s file descriptors, resulting in a denial of service
EVerest is an EV charging software stack. Prior to version 2025.10.0, once the module receives a SDP request, it creates a whole new set of objects like `Session`, `IConnection` which open new TCP socket for the ISO15118-20 communications and registers callbacks for the created file descriptor, without closing and destroying the previous ones. Previous `Session` is not saved and the usage of an `unique_ptr` is lost, destroying connection data. Latter, if the used socket and therefore file descriptor is not the last one, it will lead to a null pointer dereference. Version 2025.10.0 fixes the issue.
CVE-2021-47877
High · 7.5
CWE-770 Jan 21, 2026
GeoGebra Graphing Calculator 6.0.631.0 - Denial Of Service
GeoGebra Graphing Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the application by inputting an oversized buffer. Attackers can generate a payload of 8000 repeated characters to overwhelm the input field and cause the application to become unresponsive.
CVE-2021-47876
High · 7.5
CWE-770 Jan 21, 2026
GeoGebra Classic 5.0.631.0-d - Denial of Service
GeoGebra Classic 5.0.631.0-d contains a denial of service vulnerability in the input field that allows attackers to crash the application by sending oversized buffer content. Attackers can generate a large buffer of 800,000 repeated characters and paste it into the 'Entrada:' input field to trigger an application crash.
CVE-2021-47875
Critical · 9.8
CWE-770 Jan 21, 2026
GeoGebra CAS Calculator 6.0.631.0 - Denial of Service
GeoGebra CAS Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the application by generating a large buffer overflow. Attackers can create a payload with 8000 repeated characters and paste it into the calculator's input field to trigger an application crash.
CVE-2021-47865
High · 7.5
CWE-770 Jan 21, 2026
ProFTPD 1.3.7a - Remote Denial of Service
ProFTPD 1.3.7a contains a denial of service vulnerability that allows attackers to overwhelm the server by creating multiple simultaneous FTP connections. Attackers can repeatedly establish connections using threading to exhaust server connection limits and block legitimate user access.
CVE-2025-68133
High · 7.4
CWE-770 Jan 21, 2026
EVerest's unlimited connections can lead to DoS through operating system resource exhaustion
EVerest is an EV charging software stack. In versions 2025.9.0 and below, an attacker can exhaust the operating system's memory and cause the module to terminate by initiating an unlimited number of TCP connections that never proceed to ISO 15118-2 communication. This is possible because a new thread is started for each incoming plain TCP or TLS socket connection before any verification occurs, and the verification performed is too permissive. The EVerest processes and all its modules shut down, affecting all EVSE functionality. This issue is fixed in version 2025.10.0.
CVE-2026-21696
Medium · 6.5
CWE-770 Jan 19, 2026
Endless reprocessing/reupload of activity log data due to SQLite max parameters limit not being considered
Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Starting in version 1.7.0 and prior to version 1.12.0, Wings does not consider SQLite max parameter limit when processing activity log entries allowing for low privileged user to trigger a condition that floods the panel with activity records. After Wings sends activity logs to the panel it deletes the processed activity entries from the wings SQLite database. However, it does not consider the max parameter limit of SQLite, 32766 as of SQLite 3.32.0. If wings attempts to delete more than 32766 entries from the SQLite database in one query, it triggers an error (SQL logic error: too many SQL variables (1)) and does not remove any entries from the database. These entries are then indefinitely re-processed and resent to the panel each time the cron runs. By successfully exploiting this vulnerability, an attacker can trigger a situation where wings will keep uploading the same activity data to the panel repeatedly (growing each time to include new activity) until the panels' database server runs out of disk space. Version 1.12.0 fixes the issue.
CVE-2025-69199
Medium · 6.5
CWE-770 Jan 19, 2026
Pterodactyl Wings's websocket endpoints have no visible rate limits or monitoring, allowing for DOS attacks under certain circumstances
Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to version 1.12.0, websockets within wings lack proper rate limiting and throttling. As a result a malicious user can open a large number of connections and then request data through these sockets, causing an excessive volume of data over the network and overloading the host system memory and cpu. Additionally, there is not a limit applied to the total size of messages being sent or received, allowing a malicious user to open thousands of websocket connections and then send massive volumes of information over the socket, overloading the host network, and causing increased CPU and memory load within Wings. Version 1.12.0 patches the issue.
CVE-2025-11044
Medium · 6.8
CWE-770 Jan 19, 2026
Vulnerability on Automation Runtime my cause DoS Conditions
An Allocation of Resources Without Limits or Throttling vulnerability in the ANSL-Server component of B&R Automation Runtime versions prior to 6.5 and prior to R4.93 could be exploited by an unauthenti-cated attacker on the network to win a race condition, resulting in permanent denial-of-service (DoS) conditions on affected devices.
CVE-2026-23490
High · 7.5
CWE-770 Jan 16, 2026
pyasn1 has a DoS vulnerability in decoder
pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.
CVE-2025-14435
Medium · 6.5
CWE-770 Jan 16, 2026
Application-Level DoS via infinite re-render loop in user profile handling
Mattermost versions 10.11.x <= 10.11.8, 11.1.x <= 11.1.1, 11.0.x <= 11.0.6 fail to prevent infinite re-renders on API errors which allows authenticated users to cause application-level DoS via triggering unbounded component re-render loops.
CVE-2025-14822
Medium · 6.5
CWE-770 Jan 16, 2026
DoS from quadratic complexity in model.ParseHashtags
Mattermost versions 10.11.x <= 10.11.8 fail to validate input size before processing hashtags which allows an authenticated attacker to exhaust CPU resources via a single HTTP request containing a post with thousands space-separated tokens
CVE-2021-47793
High · 7.5
CWE-770 Jan 15, 2026
Telegram Desktop 2.9.2 - Denial of Service (PoC)
Telegram Desktop 2.9.2 contains a denial of service vulnerability that allows attackers to crash the application by sending an oversized message payload. Attackers can generate a 9 million byte buffer and paste it into the messaging interface to trigger an application crash.
CVE-2021-47791
High · 7.5
CWE-770 Jan 15, 2026
SmartFTP Client 10.0.2909.0 - 'Multiple' Denial of Service
SmartFTP Client 10.0.2909.0 contains multiple denial of service vulnerabilities that allow attackers to crash the application through specific input manipulation. Attackers can trigger crashes by entering malformed paths, using invalid IP addresses, or clearing connection history in the client's interface.
CVE-2026-22045
High · 7.5
CWE-770 Jan 15, 2026
Traefik's ACME TLS-ALPN fast path lacks timeouts and close on handshake stall
Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.35 and 3.6.7, there is a potential vulnerability in Traefik ACME TLS certificates' automatic generation: the ACME TLS-ALPN fast path can allow unauthenticated clients to tie up go routines and file descriptors indefinitely when the ACME TLS challenge is enabled. A malicious client can open many connections, send a minimal ClientHello with acme-tls/1, then stop responding, leading to denial of service of the entry point. The vulnerability is fixed in 2.11.35 and 3.6.7.
CVE-2026-22803
High · 7.5
CWE-770 Jan 15, 2026
SvelteKit has a memory amplification DoS in Remote Functions binary form deserializer
SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From 2.49.0 to 2.49.4, the experimental form remote function uses a binary data format containing a representation of submitted form data. A specially-crafted payload can cause the server to allocate a large amount of memory, causing DoS via memory exhaustion. This vulnerability is fixed in 2.49.5.
CVE-2021-47784
High · 7.5
CWE-770 Jan 15, 2026
Cyberfox Web Browser 52.9.1 - Denial of Service (PoC)
Cyberfox Web Browser 52.9.1 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the search bar with excessive data. Attackers can generate a 9,000,000 byte payload and paste it into the search bar to trigger an application crash.
CVE-2021-47771
Medium · 5.5
CWE-770 Jan 15, 2026
RDP Manager 4.9.9.3 - Denial-of-Service (PoC)
RDP Manager 4.9.9.3 contains a denial of service vulnerability in connection input fields that allows local attackers to crash the application. Attackers can add oversized entries in Verbindungsname and Server fields to permanently freeze and crash the software, potentially requiring full reinstallation.
CVE-2021-47752
High · 7.5
CWE-770 Jan 15, 2026
AWebServer GhostBuilding 18 - Denial of Service (DoS)
AWebServer GhostBuilding 18 contains a denial of service vulnerability that allows remote attackers to overwhelm the server by sending multiple concurrent HTTP requests. Attackers can generate high-volume requests to multiple endpoints including /mysqladmin to potentially crash or render the service unresponsive.
CVE-2026-0897
High · 7.5
CWE-770 Jan 15, 2026
Denial of Service in Keras via Excessive Memory Allocation in HDF5 Metadata
Allocation of Resources Without Limits or Throttling in the HDF5 weight loading component in Google Keras 3.0.0 through 3.13.0 on all platforms allows a remote attacker to cause a Denial of Service (DoS) through memory exhaustion and a crash of the Python interpreter via a crafted .keras archive containing a valid model.weights.h5 file whose dataset declares an extremely large shape.